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Chemistry, 11.01.2020 01:31 deborahsitting

Which of the following structures are tubes? a. eustachian, pharynx, bronchi. b. cilia, adenoids, mucous, epiglottis. c. apex, maxillary, sphenoidal, ethmoidal?

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Which of the following structures are tubes? a. eustachian, pharynx, bronchi. b. cilia, adenoids, m...
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